This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X185, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SU32~50 Standard Cylinder SU32X185
The AirTAC Airtac SU32~50 Standard Cylinder SU32X185 is a double-acting profile-type standard cylinder with a Ø32mm bore and 185mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X185, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke185 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X185
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU32X185
The AirTAC SU32X185 is a discontinued double-acting profile-type cylinder with a 32 mm bore and 185 mm stroke. It delivers 402 N push force at 0.5 MPa via a 1/8" port. AirTAC replaced this legacy unit with the SAU32X185, a direct replacement sharing the exact same bore, stroke, output force, port size, and SC-series mounting footprint.
Because this is a non-magnet SKU, it cannot accept a sensor. The SAU upgrade introduces modern CMSG/DMSG/EMSG switch compatibility and a SAUF built-in valve option the SU lacked. Mechanically, the extruded aluminum body remains shorter than an ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU32X185 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X185 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X185 |
| Bore size | Ø32 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X185 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X185 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU32X185
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×185 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SU32~50 Standard Cylinder SU32X185 Is Used
Small Part Ejection
Ideal for pushing lightweight machined components out of a fixture, utilizing the 402 N push force at 0.5 MPa to reliably clear the work area.
Package Diverting
Deploys a 185 mm stroke to actuate a routing gate on a conveyor line, handling small totes without requiring the bulk of an ISO cylinder.
Bin Lid Actuation
Opens and closes access hatches on sorting bins where a compact 32 mm profile body is necessary to fit within tight machinery clearances.
Replacing the Airtac SU32~50 Standard Cylinder SU32X185 with the SAU32X185
To replace this SU32X185 with the SAU32X185, verify your 1/8" port, M10x1.25 rod thread, and SC-series mounting hardware (LB/FA/FB/CA/CB) — all carry over directly. Since this 185 mm stroke exceeds the 32 mm bore's 100 standard stroke increments, it is a nonstandard stroke; ensure you specify the exact 185 mm length when ordering the SAU. If your application needs position sensing, note this no-magnet SKU cannot accept a switch, and the SAU family shifts to CMSG/DMSG/EMSG sensors. For higher force needs, a 40 mm bore provides 628 N push at 0.5 MPa, while a 20 mm bore offers less. Finally, this cylinder cannot hold a load without live air — the 21 mm cushions only decelerate; use an external rod lock for static holding. At 185 mm, ensure side-load alignment to prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAU32X185
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU32X185 FAQ
Yes, the AirTAC SU32X185 is discontinued. The direct replacement is the SAU32X185. It features the same 32 mm bore, 185 mm stroke, 1/8" port, and SC-series mounting, so it bolts right in without mechanical modifications.
At 0.5 MPa it pushes 402 N and pulls 345 N. It pushes 563 N at 0.7 MPa and 724 N at 0.9 MPa, with a theoretical max of 82 kgf at 1.0 MPa. The 21 mm adjustable cushions only decelerate the piston; a plain cylinder cannot hold a load on air loss — use an external rod lock for static holding.
Request a Quote for the SAU32X185
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X185 replacement — usually within 7-8 hours.